Cannot browse from network neighborhood of windows 2000 server

[achyutdhakal]

Hi,

I have a problem: I have two windows 2000 server with windows XP pro clients under domain "A". I can see the win xp computers listed under the domain but I cannot browse from "my network places" of the windows 2000 server to the windows XP pro client to access their shared folders and printers. But, I can browse from one server to other server and also from windows XP clients to the Windows 2000 Server as well as from windows XP clients to other Windows XP clients. I get following error message when trying to double click the windows XP client from the server :
" You do not have the appropriate access rights for this server. For further information, contact your network administrator"

When I try to right click and see the properties, it gives me following error message:
"The account is not authorized to log in from the station"

Windows 2000 Server has service pack 4 in it.

Hoping for your logical answers.

Thanks,
Achyut